Disk-sharpening machine.



F. H. KLENKE. DISK SHARPENING MACHINE.

APPLICATION FILED 212.23, 1909.

Patented May 23, 1911.

2 SHEETSSHEET 1.

vwemtoz witnesses F. H. KLENKE.

DISK SHARPENING MACHINE.

APPLIGATION FILED PEB.23, 1909.

993,325, Patented May23,1911.

2 8HEETS-SHEET 2.

anvantoz amm $1100 4 I a QW v /4/;)/ 5mm,

FRED H. KLENKE F ASHTON, ILLINOIS.

DISK-SEQABPENING MACHINE. a

To all whom it may concern:

Be it known that I, FRED. H. KLENKE, a

citizen of the United States, residing at Ashton, in the-county of Lee and State of Illinois, have invented certain new and useful improvements in Disk-Sharpening Machines,'of which the following is .a specification. q

My invention relates to machines for sharpening the disks of disk cultivators, and

. embodies certain. improvements on a similar pro ided it device for which application for Letters Patent of the United States was filed by me April 322'", 1%8, Serial'li umber 429AH.

Such improvements consistchiefly in providing convenient means for raising the gang of disks into the machine, in position to be sharpened, and inremoving them therefrom after theoperation. in the drawings: Figure 1 isa 'plan view of my invention. Fi 2 is an enlarged de tail, slimming one of l o rriers in end view. end via .J or the machine. Fig iis a rear" elevation thereof, with some of the parts omitted. v

Similar numbers refer to similar parts (iii ,9 1

throughout the several figures.

1-1 ent the end pieces of the frame, 11 a segmental extension 2, and

iinitedby cross'-frames 3-3, all of franies being preferably formed of angleplatfles' suitable strength.

The crossframes are reinforced at the corners with corner'plates as.

Supported on the frames '1 is a rotaryshaft 5, provided on one end with "a pulley ii, to which power may be applied to operate the machine. Slidably mounted on the shaft 5 IS a series of grindingdisks 77,

held from movement in one direction by col lars S-8. fixed on the shaft 5, and permitted a limited movement in the opposite direction by means of coiled springs 9. interposed between. the grinders and collars.

Specification of Letters Patent. Patented 7 23,. 1911, Application filed February 23,1909. Serial no. erases. f z

16 is a frame, supported at one end a pipe 17, and at the other end:by.,=a short shaft 18, such pipe and shaftbeing joiirnaled on carriers 19, slidably. niountedon the frames 1. v

20-20 represent a gang of sup ported in the frame 16 by means'of a .handscrew 21 held in the pipe 17:, and ach uck 22 on the inner end of the shaft,18,# I 1 I 23 IS a cross-plate, up'on wl ichlisjourw naled a shaft 24:, on which is fixeda pulley 25. actuated by a pulley 26v on'the shaft 5,'byv means of a belt 27. rLgear-wheel 28 is also secured on the shaft 24:, movement being imparted therefrom to a-gear-wheeiQth on a short shaft 30, 'journaled. on thellower side ofthe plate 23, the wheel 29 .al;so,mesh ing with 'a gear-wheel 31 on ash'aft32, journaled in the lower part of.the.. frame,rotation .bein thus imparted to ftheQshaft-L from the shaft 5, but inadirection contrary thereto. (in the outerend of .theysha ft l8 is a sprocket wheel 33, driven from a procket-wheel 34:. on the-end of-the shaft 2 by means of a chain 35.. l

In the inner plate of each of thecar i 19 is pivoted a sleeve 36, interiorly .-threaded to accommodate the threaded portion of a screw-rod 37. Such rods'aresupported at their rear ends by brackets 38-, pivotally, at-,-

' tached to the frames lby means'of bolts 38,

(Fig. 3). Each of. said rodsflsprOVlided with a sprocket-wheel139, v connected a sprocket chain 40, whereby said rods may be coincidently, operated. Each of saidrods is also provided at itsrear end' with"a handwheel41. i

In operation the rod f gjag to move the carriers 19- rearwardly upon fjthe frames 1 until they pass downwardly over; the curved portions 2-thereof, into the position shown in broken lines in Fig. 3. The gang of disks can then be easily lifted into the frame 16, and secured in place therein. The movement of the screw-rods is then reversed, gradually raising-thedisks to a position in proximity to the grinding wheels 7 The shaft 5 is then moved to bring the grinders into contact with the disks, and the .riers operation of sharpening such disks is performed. The rods 37 are then again actuated to lower the frame 16, carrying thedisk-gang again to a position from which it can be conveniently removed from the frame.

The shaft 32 is located at a point which 18.

substantially the center of a circle of which the curved portion 2 forms an arc, so that in the movement of the carriers upon the framethe relative position of the wheels 33 and 34 'is not changed.

A gang of disks of the kind designed to be sharpenedin the machine shown herein.

possesses considerable weight, and it is obvious that the elevation thereof to a polnt in the machine where it can be operated on by the grinders is attended with some difliculty, and that the same can be easily accomplished by the use of the mechanism herein shown and described.

What I claim as my invention, and desire to secure'by Letters Patent of the United States, is:

1. In a device of the class named, a pair of end "frames, provided with downwardly curved extensions; a pair of carriers slidably mounted on said frames; means for supporting a gang of disks upon said carriers, and means for simultaneously moving said carriers upon said frames, substantially as described.

2. In a device of the class named, a pair of suitably supported .end frames, provided with downwardly curved extensions; a pair of carriers, slidably supported on said frames; a frame, supported by said carriers; means for supporting a gang of disks in said frame; means for rotating said gang of disks while supported therein; and means for moving said carriers .coincidently upon said end frames, substantially as shown'and described.

3. In a device of the class named, apair of suitably supported end frames, provided with downwardly curved extensions; a pair of carriers, slidably mounted on said frames a pair of interiorly threaded sleeves, pivotally supported by said carriers; a pair of screw-rods, engaging said sleeves and hingedly supported at their rear ends;

.means for simultaneously actuating said rods, to move said carriers upon said endframes, in one direction or the other, as desired; and means for supporting a gang of disks upon said carriers, substantially as shown and described.

4:. A device of the class named, compriswardly curved extensions, describing the arc of a circle; cross-frames supporting said end frames; a rotary shaft supported on said end frames; a series of grinding wheels, supported thereon at distances corresponding to the spacing of the disks of a disk-gang; a pair of carriers, slidably mounted on said end frames; means for moving said carriers coincidently upon said end frames; a shaft, journaled on one of said carriers, and provided on its inner end with a chuck adapted to support one end of a disk gang; a hollow I shaft, journaled on the other carrier, and

provided with means for supporting the opposite end of a disk gang; a frame, supported by said last-named shafts; a rotary shaft, supported in the lower part of said endframes, at a pointwhich is substantially the center of a circle of which said frame extensions form an arc; means for imparting wheel shaft, but in a direction contrary ment in one direction; means for giving a limited longitudinal movement to said shaft; means for actuating said. carriers, to move said disk-gang toward or away from said grinding wheels; and means for rotating said disk-gang in a direction contrary to the roshown and for the purpose mentioned.

In testimony whereof I aifix my signatur' in presence of two witnesses.

- FRED H. IHJENKE- Witnesses:

W. N. HAsKELL, F. D. RILY.

thereto; and means for imparting the rotaing a pair of end frames; having .down- (rotation to said shaft from said grinding for permitting said wheels a limited 'movetation of said grinders, substantially as 

